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import skin
from enigma import ePoint
class GUIComponent(object):
""" GUI component """
def __init__(self):
self.instance = None
self.onVisibilityChange = [ ]
self.__visible = 0
self.visible = 1
self.skinAttributes = None
self.deprecationInfo = None
def execBegin(self):
pass
def execEnd(self):
pass
def onShow(self):
pass
def onHide(self):
pass
def destroy(self):
self.__dict__.clear()
# this works only with normal widgets - if you don't have self.instance, override this.
def applySkin(self, desktop):
if not self.visible:
self.instance.hide()
if self.skinAttributes is None:
return False
skin.applyAllAttributes(self.instance, desktop, self.skinAttributes)
return True
def move(self, x, y = None):
# we assume, that x is already an ePoint
if y is None:
self.instance.move(x)
else:
self.instance.move(ePoint(int(x), int(y)))
def resize(self, size):
self.instance.resize(size)
def setZPosition(self, z):
self.instance.setZPosition(z)
def show(self):
old = self.__visible
self.__visible = 1
if self.instance is not None:
self.instance.show()
if old != self.__visible:
for fnc in self.onVisibilityChange:
fnc(True)
def hide(self):
old = self.__visible
self.__visible = 0
if self.instance is not None:
self.instance.hide()
if old != self.__visible:
for fnc in self.onVisibilityChange:
fnc(False)
def getVisible(self):
return self.__visible
def setVisible(self, visible):
if visible:
self.show()
else:
self.hide()
visible = property(getVisible, setVisible)
def setPosition(self, x, y):
self.instance.move(ePoint(int(x), int(y)))
def getPosition(self):
p = self.instance.position()
return (p.x(), p.y())
position = property(getPosition, setPosition)
# default implementation for only one widget per component
# feel free to override!
def GUIcreate(self, parent):
self.instance = self.createWidget(parent)
self.postWidgetCreate(self.instance)
def GUIdelete(self):
self.preWidgetRemove(self.instance)
self.instance = None
# default for argumentless widget constructor
def createWidget(self, parent):
return self.GUI_WIDGET(parent)
def postWidgetCreate(self, instance):
pass
def preWidgetRemove(self, instance):
pass
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